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Unit 4 Science Test
| Question | Answer |
|---|---|
| What is that difference between prokaryotic and eukaryotic cells | The main difference is that eukaryotic cells have a membrane-bound nucleus and other organelles, while prokaryotic cells lack a nucleus and have no membrane-bound organelles. |
| Nucleus (Animal Cell) | Contains the cell's genetic material (DNA) and controls cell activities. |
| Nuclear envelope (Animal Cell) | protect the cell's DNA and separate the nucleus from the cytoplasm, creating a controlled environment for genetic material |
| Chromosomes (Animal Cell) | to contain and organize the genetic information (DNA) necessary for the cell's growth |
| Nucleolus (Animal Cell) | synthesize and assemble ribosomes, the machinery for protein synthesis |
| Smooth endoplasmic reticulum (Animal Cell) | synthesis + processing of lipids – metabolism of drugs |
| Rough endoplasmic reticulum (Animal Cell) | A site of protein synthesis |
| Lysosome (Animal Cell) | act as the "garbage disposal" and recycling center by using digestive enzymes to break down worn-out organelles |
| Centriole (Animal Cell) | essential for cell division, the formation of cilia and flagella, and cell motility |
| Peroxisome (Animal Cell) | Degrade fatty acids and also detoxify harmful substances like hydrogen peroxide. |
| Cytoskeleton (Animal Cell) | A network of fibers that provides structure and support. |
| Microtubule (Animal Cell) | maintain cell shape, support organelles, and provide "highways" for intracellular transport |
| Intermediate filament (Animal Cell) | provide structural support and mechanical strength to animal cells |
| Microfilament (Animal Cell) | Microfilaments, composed of actin, provide structural support, enable cell movement and contraction, and play a crucial role in cell division in animal cells |
| Ribosomes (Animal Cell) | Create proteins; they can be found floating in the cytoplasm or attached to the endoplasmic reticulum. |
| Golgi apparatus (Animal Cell) | Modifies, sorts, and packages proteins and other molecules for transport. |
| Plasma membrane (Animal Cell) | protects the cell and regulates the passage of substances, maintaining a stable internal environment (homeostasis) |
| Mitochondrion (Animal Cell) | The "powerhouse" of the cell that produces energy. |
| Cell Membrane (Animal Cell) | The outer boundary that regulates what enters and exits the cell. |
| Cytoplasm (Animal Cell) | The jelly-like substance that fills the cell and surrounds the organelles. |
| Lysosomes (Animal Cell) | Contain enzymes that break down waste materials and cellular debris. |
| Vacuoles (Animal Cell) | Membrane-bound sacs that can store water, nutrients, or waste. |
| Centrosome (Animal Cell) | Involved in cell division. |
Created by:
LilianBowman